Lactaldehyde reductase (NADPH)

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In enzymology, a lactaldehyde reductase (NADPH) (EC is an enzyme that catalyzes the chemical reaction

propane-1,2-diol + NADP+ L-lactaldehyde + NADPH + H+

Thus, the two substrates of this enzyme are propane-1,2-diol and NADP+, whereas its 3 products are L-lactaldehyde, NADPH, and H+.

This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-OH group of donor with NAD+ or NADP+ as acceptor. The systematic name of this enzyme class is propane-1,2-diol:NADP+ oxidoreductase. Other names in common use include lactaldehyde (reduced nicotinamide adenine dinucleotide phosphate), reductase, NADP+-1,2-propanediol dehydrogenase, propanediol dehydrogenase, 1,2-propanediol:NADP+ oxidoreductase, and lactaldehyde reductase (NADPH).


  • IUBMB entry for
  • BRENDA references for (Recommended.)
  • PubMed references for
  • PubMed Central references for
  • Google Scholar references for
  • GUPTA NK, ROBINSON WG (1960). "The enzymatic conversion of lactaldehyde to propanediol". J. Biol. Chem. 235: 1609&ndash, 12. PMID 13830319.

External links

The CAS registry number for this enzyme class is 9028-43-7.

Gene Ontology (GO) codes